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Alkyl and cyclic substituted thiuram disulphides as ligands. titanium(iv), vanadium(iv), and oxovanadium(iv) complexes

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Summary

Titanium(IV) hexacoordinate thiuram disulphide complexes of the type [TiX4R2NC(S)SSC(S)NR2}] (X=Cl or Br; R=Me, Et, piperidinyl or morpholinyl) have been prepared by reaction between TiX4 (X=Cl or Br) and the thiuram disulphide. Similar reactions with VOCl3 lead to reduction of vanadium(V) and give rise to the oxovanadium(IV) pentacoordinate complexes [VOCl2{R2NC(S)SSC(S)NR2}]. However, the reactions of these same thiuram disulphide ligands with [VCl2(THF)2] (THF=tetrahydrofuran) cause oxidation of vanadium and to the reduction of the disulphide to the corresponding dithiocarbamate [R2NCS2]−, resulting in new dichlorobis (dithiocarbamate)vanadium(IV) complexes [VCl2-(R2NCS2)2]. All the compounds have been characterized by elemental analyses, i.r., visible and e.p.r. spectra. Both thiuram disulphides and dithiocarbamate ligands exhibit bidentate

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  1. Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma, Canto Blanco, 28049, Madrid, Spain

    Isabel Cuadrado & Moisés Morán

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  1. Isabel Cuadrado
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  2. Moisés Morán
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Cuadrado, I., Morán, M. Alkyl and cyclic substituted thiuram disulphides as ligands. titanium(iv), vanadium(iv), and oxovanadium(iv) complexes. Transition Met Chem 11, 375–381 (1986). https://doi.org/10.1007/BF01225987

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  • DOI: https://doi.org/10.1007/BF01225987

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